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Science
Acid and bases
Question | Answer |
---|---|
Acids have a sour ______ | Taste |
Acids attck metals stone materials and flesh so they are ? | Corrosive |
Acid turns blue litmus ______ | Red |
Which acids have a ph close to zero? Strong or weak | Strong |
Most acids react with most metals to realease what? | Hydrogen gas |
Metal + acid -----> | Salt + hydrogen |
Acid reacts with carbonates to form | Carbon dioxide |
Acid + base ----> | Salt and water |
Equation for neutrilisation? | Acid + base = salt and water |
Bases are the ________to acids | Opposite |
Bases that are soluble in water are called ? | Alkalis |
Alkalis are soapy to touch because they ______ | React with natural oils on the skin to make soap |
Are bases corrosive? | Yes |
Bases turn red litmus ? | Blue ___ blue for base |
Bases have a ph ___ | Bigger than 7 |
Ammonia has a ph close to ? | 7 |
Sodium hydroxide has a ph closer to ? | 14 |
Ammonia metal hydroxides and metal oxides are all? Acid/base | Bases |
Bases neutrilise acids by… | Forming salt and water |